web2py/web2py — pull request #569 by ilvalle (2014-12-19 13:53:08+00:00)
Title: fix issue 1931: preserve vars in grid search

As @abastardi proposed in https://groups.google.com/d/topic/web2py/xlQfmCUZci0/discussion, I created hidden fields for all url vars but keywords and page.

This PR should fix also issue 2020

It might be useful for https://github.com/web2py/web2py/pull/548